Abstract: Fluid circulation tube and heat exchanger equipped with tubes of this type are disclosed. The tube (6) is produced by bending, and, once its wall has been bent, has a base portion (12) prolonged laterally by two linking portions (13) leading to two top portions (14) turned toward one another, which terminate in end legs (15) turned toward the base portion (12), forming at least two parallel longitudinal internal channels (16) into which the two systems (20) of bends (21) of a corrugated disrupter (17) can be inserted, these systems being interconnected by a central part (23) inserted into a gap left between said legs and the base portion.

Abstract: Heat exchanger tube (100), in particular the condenser of a motor vehicle air conditioning system, is disclosed. The tube comprises a folded wall (105) defining a housing (115), and an internal separator (130), inserted into said housing, said internal separator defining a plurality of fluid circulation channels (136), said wall (105) having large surfaces connected by radii. The tube (100) is configured so that the clearance between the wall (105) and the internal separator (130) is filled along at least one radius (110).

Abstract: The invention relates to a brazing method for a tube of an air heater. The method includes the steps of: folding a metal band such as to form at least one tube, providing inside the tube a disturbance insert having a thickness substantially lower than or equal to 150 ?m, with the metal band and/or the insert includes a plating layer on at least one surface to be brazed such that the ratio of the volume of the plating layer to the volume to be brazed is either substantially higher than or equal to a predetermined threshold on the basis of the average gap between the insert and the tube, and brazing the tube and the insert.

Abstract: Fluid circulation tube and heat exchanger equipped with tubes of this type are disclosed. The tube (6) is produced by bending, and, once its wall has been bent, has a base portion (12) prolonged laterally by two linking portions (13) leading to two top portions (14) turned toward one another, which terminate in end legs (15) turned toward the base portion (12), forming at least two parallel longitudinal internal channels (16) into which the two systems (20) of bends (21) of a corrugated disrupter (17) can be inserted, these systems being interconnected by a central part (23) inserted into a gap left between said legs and the base portion.

Abstract: Heat exchanger tube (100), in particular the condenser of a motor vehicle air conditioning system, is disclosed. The tube comprises a folded wall (105) defining a housing (115), and an internal separator (130), inserted into said housing, said internal separator defining a plurality of fluid circulation channels (136), said wall (105) having large surfaces connected by radii. The tube (100) is configured so that the clearance between the wall (105) and the internal separator (130) is filled along at least one radius (110).